Home / 7,347.54-10,140.30-4,203.12

Finding the Fourth Proportional to 7,347.54, 10,140.30 and 4,203.12

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Solution

The fourth proportional to 7,347.54, 10,140.30 and 4,203.12 is: 5,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.54 : 10,140.30 = 4,203.12 : x
  2. Step 2: Convert to fraction form
    7,347.54/10,140.30 = 4,203.12/x
  3. Step 3: Cross multiply
    7,347.54x = 10,140.30 × 4,203.12
  4. Step 4: Simplify right side
    7,347.54x = 42,620,897.74
  5. Step 5: Solve for x
    x = 42,620,897.74/7,347.54
  6. Step 6: Final answer
    x = 5,800.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.